Marking pen



FIG. 1 is a front elevational view of a marking pen showing my new design, the rear view being a mirror image thereof;

FIG. 2 is a left side elevational view, the right side being a mirror image thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a perspective view thereof;

FIG. 6 is a front elevational view thereof with the cap member removed for ease of illustration, the rear view being a mirror image thereof;

FIG. 7 is a left side elevational view of FIG. 6, the right side being a mirror image thereof;

FIG. 8 is a top plan view of FIG. 6;

FIG. 9 is a bottom plan view of FIG. 6; and,

FIG. 10 is a perspective view of FIG. 6. 

The ornamental design for a “marking pen”, as shown and described. 